function JScriptTag(src, charset)
{
	document.write('<'+'script src="' + src + '"' +' type="text/javascript"' + (charset ? ' charset="' + charset + '"' : '') + '><'+'/script>');
}

JScriptTag("http://map.wooricy.com/AjaxMap/Resource/js/JMap.js");


function JSpec()
{
    this.tileSize   = 256;
    this.minX       = 0;
    this.maxX       = 1000000;
    this.minY       = -100000;
    this.maxY       = 1000000;
    this.minLevel   = 1;
    this.maxLevel   = 12;
    this.constant   = 0.5;  // 1lv 1px = 0.5 miter
    
    this.CoordType      = "KATECH";
    
    this.ResourceUrl    = "http://map.wooricy.com/AjaxMap/Resource/";
    this.emptyTileUrl   = 'http://map.wooricy.com/AjaxMap/Resource/img/mapbg_sea.png';
    this.preTileUrl     = 'http://map.wooricy.com/AjaxMap/Resource/img/mapbg.png';
    
    this.baseMapUrls    = [
                            'http://220.95.238.158/gyeonggi_eng/'
                          ];

    this.downloadUrl    = 'http://220.95.238.158/gyeonggi_eng/download.php';
    
    this.arrDistPerPixel = [];
    /*
    this.arrDistPerPixel = [0.5, 1, 2, 4, 8, 16, 32];
    */
}

JSpec.prototype.getCoordType = function (c)
{
    return this.CoordType;
};

JSpec.prototype.setCoordType = function (c)
{
    this.CoordType = c;
};

JSpec.prototype.getDistance = function (a, b)
{
    if(!a || !b) return null;
    var meter = 0;
    
    if(this.CoordType=="WGS84")
    {
        var RE = 6378137;
        
        var LON1 = a.x;
        var LAT1 = a.y;
        var LON2 = b.x;
        var LAT2 = b.y;

        var DLON= Math.abs((LON2 - LON1) * Math.PI / 180.0);
        var DLAT= Math.abs((LAT2 - LAT1) * Math.PI / 180.0);
        var A = Math.abs(
                Math.pow(Math.sin(DLAT / 2.0), 2) + 
                Math.cos(LAT1* Math.PI / 180.0) * 
                Math.cos(LAT2* Math.PI / 180.0) * 
                Math.pow(Math.sin(DLON / 2.0), 2)
              );
              
        meter = RE * 2.0 * Math.asin(Math.min(1, Math.sqrt(A)));
    }
    else
        meter = a.distance(b);
        
    return meter;
};

JSpec.prototype.setConstant = function (c)
{
    this.constant = c;
};

JSpec.prototype.distancePerPixel =function (level)
{
    if(!this.arrDistPerPixel[level-1])
        this.arrDistPerPixel[level-1] = Math.pow(2, level-1) * this.constant;
    return this.arrDistPerPixel[level-1];
};

JSpec.prototype.getRowCount =function (level)
{
    var dp =    this.distancePerPixel(level);
    var rowImageCount = Math.floor((this.maxX - this.minX)  / (dp * this.tileSize));
    return rowImageCount;
};

JSpec.prototype.getColCount =function (level)
{
    var dp =    this.distancePerPixel(level);
    var colImageCount = Math.floor((this.maxY - this.minY) / (dp * this.tileSize));
    return colImageCount;
};

JSpec.prototype.getTileUrl = function(xIndex, yIndex, level) {
    var rowImageCount = this.getRowCount(level);
    var colImageCount = this.getColCount(level);
    if (xIndex < 0 || yIndex < 0 || xIndex >= rowImageCount || yIndex >= colImageCount) {
        return this.emptyTileUrl;
    }

    var imageIndex = yIndex * rowImageCount + xIndex;

    var orgImageIndex = imageIndex;
    var fullpath = "";

    fullpath = "/" + String(imageIndex % 1000) + fullpath;
    imageIndex = Math.floor(imageIndex / 1000);

    fullpath = "/" + String(imageIndex % 1000) + fullpath;
    imageIndex = Math.floor(imageIndex / 1000);

    fullpath = "/" + String(imageIndex % 1000) + fullpath;
    imageIndex = Math.floor(imageIndex / 1000);

    fullpath = "/" + String(imageIndex % 1000) + fullpath;

    return this.baseMapUrls[orgImageIndex % this.baseMapUrls.length] + level + fullpath + ".png";
};

JSpec.prototype.getOverlayUrl =function (xIndex,yIndex,level)
{
    return "";
};

JSpec.prototype.point2pixel =function (point,level,pixel)
{
    if (!pixel)
    {
        pixel = new JPoint();
    }
    var dp =    this.distancePerPixel(level);
    pixel.set(Math.round((point.x - this.minX)/dp),Math.round((point.y - this.minY)/dp));
    return pixel;
};

JSpec.prototype.pixel2point =function (pixel,level,point)
{
    if (!point)
    {
        point = new JPoint();
    }
    var dp =    this.distancePerPixel(level);
    point.set(Math.round(pixel.x*dp)+this.minX,Math.round(pixel.y*dp)+this.minY);
    return point;
};